%% You should probably cite draft-ietf-pce-bier-te instead of this I-D.
@techreport{chen-pce-bier-00,
    number =    {draft-chen-pce-bier-00},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-chen-pce-bier/00/},
    author =    {Ran Chen and Zheng Zhang},
    title =     {{PCEP Extensions for BIER}},
    pagetotal = 10,
    year =      2015,
    month =     oct,
    day =       16,
    abstract =  {Bit Index Explicit Replication (BIER) is an architecture that provides optimal multicast forwarding through a "BIER domain" without requiring intermediate routers to maintain any multicast related per- flow state. BIER forwards and replicates packets based on a BitString in the packet header.A BIER Path can be derived from a variety of mechanisms, including an IGP Shortest Path Tree (SPT), explicit configuration, or a Path Computation Element (PCE). This document specifies extensions to the Path Computation Element Protocol (PCEP) to handle requests and responses for the computation of paths for BIER TE LSPs.},
}